CN204929313U - Luminous controlling means of LED lamps and lanterns and system - Google Patents
Luminous controlling means of LED lamps and lanterns and system Download PDFInfo
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- CN204929313U CN204929313U CN201520140940.0U CN201520140940U CN204929313U CN 204929313 U CN204929313 U CN 204929313U CN 201520140940 U CN201520140940 U CN 201520140940U CN 204929313 U CN204929313 U CN 204929313U
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Abstract
The utility model discloses a luminous controlling means of LED lamps and lanterns and system. The device includes: the controller, a PWM constant current circuit who is connected with the controller to and the 2nd PWM constant current circuit who is connected with the controller, the controller is used for judging whether the control command to the LED lamps and lanterns is the control command to luminance, if to output of cold white LED lamp cluster group and the corresponding electric current of first duty cycle, organize output and the corresponding electric current of second duty cycle to warm white LED lamp cluster, the ratio of first duty cycle and second duty cycle equals the ratio of third duty cycle and fourth duty cycle, if deny, to output of cold white LED lamp cluster group and the corresponding electric current of the 5th duty cycle, organize output and the corresponding electric current of the 6th duty cycle to warm white LED lamp cluster, the 5th duty cycle and the 6th duty cycle with equal third duty cycle and fourth duty cycle with. The utility model provides a technical scheme, the two is keeping one to adjust another when unchangeable can to realize LED luminance and colour temperature, can bring the convenience for the user.
Description
Technical field
The utility model relates to lighting technical field, particularly relates to LED (LightEmittingDiode, light-emitting diode) lamp luminescence control device and system.
Background technology
In general illumination field, the light modulation of light source has become one of important indicator weighing lighting apparatus serviceability.LED (LightEmittingDiode, light-emitting diode) enters general illumination market as the efficient emerging green illumination light source of one.LED is a kind of solid-state semiconductor device, and it can be directly luminous energy electric energy conversion.The heart of LED is a semiconductor wafer, and one end of semiconductor wafer is attached on a support (as negative pole), and the other end of semiconductor wafer connects the positive pole of power supply, and whole wafer is got up by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is P type semiconductor, and inside it, occupy an leading position in hole, and the other end of semiconductor wafer is N type semiconductor, at this side mainly electronics.Time these two kinds of semiconductors couple together, between them, just form one " P-N junction ".When electric current acts on this wafer by wire time, electronics will be pushed to P district, and in P district, electronics is with hole-recombination, then will send energy with the form of photon, the principle of LED luminescence that Here it is.And the wavelength of light determines the color of light, determine by forming P-N junction material.
In existing technology, the mode of normal employing controllable silicon light modulation or simulation light modulation realizes the light emitting control to LED.Thyristor regulating is only by regulating the power output of power supply to realize dimming function, and simulation light modulation is that the amplitude by changing output current realizes dimming function.Simulation light modulation, circuit is simple, easily realizes, but easily makes LED colour temperature change, and accurately cannot regulate colour temperature when keeping brightness constant.And thyristor regulating only utilizes existing controllable silicon dimmer, by changing the silicon controlled angle of flow, regulation output power realizes light modulation, but, which seriously can reduce drive efficiency and power factor, cannot regulate brightness when keeping colour temperature constant, and, along with the change flowing through LED current, the distortion of colour temperature also can be caused.
Therefore, the existing control device for LED luminescence, cannot realize both LED luminance and colour temperature when maintenance one is constant, regulate another, make troubles to user.
Utility model content
In view of this, the utility model provides a kind of LED lamp emission control device and system, can realize both LED luminance and colour temperature when maintenance one is constant, regulate another, brings conveniently to user.
For achieving the above object, the utility model provides following technical scheme:
A kind of LED lamp emission control device, comprising:
Controller, the first pulse width modulation (PWM) constant-current circuit be connected with described controller, and the second pulse width modulation (PWM) constant-current circuit be connected with described controller; The output of described first pulse width modulation (PWM) constant-current circuit is connected with cold white LEDs lamp string group, and the output of described second pulse width modulation (PWM) constant-current circuit is connected with warm white LEDs lamp string group;
Described controller is used for, and obtains the control command to described LED lamp; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; Before described 3rd duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives; Before described 4th duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives.
Preferably, also comprise:
Be connected with described controller, receive the wireless communication module to described LED lamp control command.
Preferably, also comprise:
Be connected with civil power, change alternating current is galvanic direct current DC constant voltage source;
Input is connected with described direct current DC constant voltage source, output is connected with described second pulse width modulation (PWM) constant-current circuit respectively with described controller, described first pulse width modulation (PWM) constant-current circuit, the direct current DC-direct current DC reduction voltage circuit of powering after reducing voltage.
Preferably, described DC constant voltage source to be output voltage the be DC constant voltage source of 24 volts.
Preferably, described direct current DC-direct current DC reduction voltage circuit is input termination 24 volts of direct currents, and output exports 5 volts of galvanic direct current DC-direct current DC reduction voltage circuits.
Preferably, cold white LEDs circuitry number in parallel in described cold white LEDs lamp string group is equal with circuitry number in parallel in described warm white LEDs light fixture; The branch road that in described cold white LEDs lamp string group, any parallel branch is corresponding with in described warm white LEDs light fixture, the number of LED is equal.
A kind of LED lamp luminescent control system, comprising:
Controller, the first pulse width modulation (PWM) constant-current circuit be connected with described controller, the second pulse width modulation (PWM) constant-current circuit be connected with described controller, the wireless communication module be connected with described controller, and wireless transmission terminal; Described wireless transmission terminal is used for accepting user's input control, sends control command to described LED lamp by the mode of wireless transmission to described wireless communication module; The output of described first pulse width modulation (PWM) constant-current circuit is connected with cold white LEDs lamp string group, and the output of described second pulse width modulation (PWM) constant-current circuit is connected with warm white LEDs lamp string group;
Described controller is used for, and obtains the control command to described LED lamp by described wireless communication module; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; Before described 3rd duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives; Before described 4th duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives.
Preferably, described wireless transmission terminal comprises:
Microprocessor, the wireless signal transmission circuit be connected with described microprocessor, the touch-control circuit be connected with described microprocessor, and the touch key-press group be connected with described touch-control circuit;
Described touch-control circuit is used for, and receives the key information that user is inputted by described touch key-press group, and described key information is sent to described microprocessor;
Described microprocessor is used for, and identifies the described key information of user's input, obtains the control command of user to described LED lamp, by described wireless signal transmission circuit, described control command is sent to described wireless communication module.
Preferably, described wireless transmission terminal also comprises:
The direct current DC constant voltage circuit be connected respectively with described microprocessor and described touch-control circuit.
Preferably, described touch key-press group comprises:
Switch key, brightness regulation button, colour temperature regulating key, the most cold white shortcut key of high color temperature and lowest color temperature warm up white shortcut key.
Known via above-mentioned technical scheme, compared with prior art, the utility model provides a kind of LED lamp emission control device and system.The technical scheme that the utility model provides, the output of described first pulse width modulation (PWM) constant-current circuit is connected with cold white LEDs lamp string group, the output of described second pulse width modulation (PWM) constant-current circuit is connected with warm white LEDs lamp string group, realize controlling respectively cold white LEDs lamp string group and warm white LEDs lamp string group, controller is by after judging the control command of described LED lamp and analyzing, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with the duty ratio newly determined for cold white LEDs lamp string group to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with the duty ratio newly determined for warm white LEDs lamp string group to described warm white LEDs lamp string group, thus pass through the mode of regulation output duty ratio, realize the control respectively to cold white LEDs lamp string group and warm white LEDs lamp string group.Concrete, controller is after getting the control command to described LED lamp, judge that described control command is control command to brightness or the control command to colour temperature, if to the control command of brightness, then respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control the first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described first duty ratio to cold white LEDs lamp string group, control the second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described second duty ratio to warm white LEDs lamp string group, concrete, the ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio, and (described 3rd duty ratio is for before responding described control command, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives, described 4th duty ratio is for before the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives), thus can realize in the process regulating brightness, ensure before brightness regulation and after regulating, output to the duty ratio of the pulse width modulation (PWM) signal of the first pulse width modulation (PWM) constant-current circuit, with the duty ratio of pulse width modulation (PWM) signal outputting to the second pulse width modulation (PWM) constant-current circuit, the two ratio is constant, make the duty ratio of the electric current exporting cold white LEDs lamp string group and warm white LEDs lamp string group respectively to, the relative percentage of the two keeps constant, so colour temperature keeps inconvenience.If to the control command of colour temperature, then respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Concrete, described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; No matter how colour temperature changes, the technical scheme that the utility model provides, ensures to regulate the duty ratio flowing through the electric current of cold white LEDs lamp string group before and after colour temperature, with flow through warm white LEDs lamp string group current duty cycle and, keep inconvenience, just can realize ensureing brightness inconvenience while adjustment colour temperature.Therefore, the technical scheme that the utility model provides, can realize both LED luminance and colour temperature when maintenance one is constant, regulate another, brings conveniently to user.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structure chart of a kind of LED lamp emission control device that Fig. 1 provides for the utility model embodiment;
The structure chart of another LED lamp emission control device that Fig. 2 provides for the utility model embodiment;
The structure chart of a kind of LED lamp luminescent control system that Fig. 3 provides for the utility model embodiment;
The structure chart of the wireless transmission terminal that Fig. 4 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
Embodiment
Refer to Fig. 1, the structure chart of a kind of LED lamp emission control device that Fig. 1 provides for the utility model embodiment.As shown in Figure 1, this device comprises:
Controller 101, a PWM (PulseWidthModulation, the pulse width modulation) constant-current circuit 102 be connected with described controller 101, and the 2nd PWM constant-current circuit 103 be connected with described controller 101; Output and cold white LEDs (LightEmittingDiode, light-emitting diode) the light fixture group of a described PWM constant-current circuit 102 are connected, and the output of described 2nd PWM constant-current circuit 103 is connected with warm white LEDs lamp string group;
Described controller 101 for: obtain the control command to described LED lamp; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control a described PWM constant-current circuit 102 and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 103 and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; Described 3rd duty ratio be the described control command of response before the duty ratio of pwm signal that receives of a described PWM constant-current circuit 102; Described 4th duty ratio be the described control command of response before the duty ratio of pwm signal that receives of described 2nd PWM constant-current circuit 103; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control a described PWM constant-current circuit 102 and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 103 and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with.
Further, described controller 101, in the described control command to brightness of described response, calculates respectively in the process of the first duty ratio and the second duty ratio, specifically comprises:
Brightness settings is obtained to the control command of brightness from described;
Described brightness settings is obtained the first rectification factor divided by present intensity value;
Calculate the product that described 3rd duty ratio and described first corrects factor, obtain described first duty ratio;
Calculate the product that described 4th duty ratio and described first corrects factor, obtain described second duty ratio.
Further, described controller 101, in the described control command to colour temperature of described response, calculates respectively in the process of the 5th duty ratio and the 6th duty ratio, specifically comprises:
Colour temperature set point is obtained to the control command of colour temperature from described;
Calculate seven duty ratio corresponding with described colour temperature set point and the 8th duty ratio respectively;
Concrete, calculate the 7th duty ratio and the 8th duty ratio by formula CW*x+WW* (1-x)=CT, wherein, CW is the colour temperature of cold white LEDs lamp string group, optionally, for the colour temperature that 6000k, WW are warm white LEDs lamp string group, optionally, for 3000k, CT is described colour temperature set point, and x is the 7th duty ratio, and (1-x) is the 8th duty ratio.It should be noted that, above-mentioned formula is for 100% duty ratio (when namely brightness is maximum), namely flow through the duty ratio of the electric current of described cold white LEDs lamp string group, add the duty ratio of the electric current flowing through described warm white LEDs lamp string group, equal 1 (namely 100%).
Calculate the ratio of present intensity value and 100% duty ratio brightness value, obtain the second rectification factor;
Calculate the product that described 7th duty ratio and described second corrects factor, obtain described 5th duty ratio;
Calculate the product that described 8th duty ratio and described second corrects factor, obtain described 6th duty ratio.
Concrete, cold white LEDs circuitry number in parallel in described cold white LEDs lamp string group is equal with circuitry number in parallel in described warm white LEDs light fixture; The branch road that in described cold white LEDs lamp string group, any parallel branch is corresponding with in described warm white LEDs light fixture, the number of the two inner LED is equal.
The technical scheme that the utility model embodiment provides, the output of a described PWM constant-current circuit is connected with cold white LEDs lamp string group, the output of described 2nd PWM constant-current circuit is connected with warm white LEDs lamp string group, realize controlling respectively cold white LEDs lamp string group and warm white LEDs lamp string group, controller is by after judging the control command of described LED lamp and analyzing, control a described PWM constant-current circuit and export the electric current corresponding with the duty ratio newly determined for cold white LEDs lamp string group to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit and export the electric current corresponding with the duty ratio newly determined for warm white LEDs lamp string group to described warm white LEDs lamp string group, thus pass through the mode of regulation output duty ratio, realize the control respectively to cold white LEDs lamp string group and warm white LEDs lamp string group.Concrete, controller is after getting the control command to described LED lamp, judge that described control command is control command to brightness or the control command to colour temperature, if to the control command of brightness, then respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control a PWM constant-current circuit and export the electric current corresponding with described first duty ratio to cold white LEDs lamp string group, control the 2nd PWM constant-current circuit and export the electric current corresponding with described second duty ratio to warm white LEDs lamp string group, concrete, the ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio, and (described 3rd duty ratio is for before responding described control command, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives, described 4th duty ratio is for before the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives), thus can realize in the process regulating brightness, ensure before brightness regulation and after regulating, output to the duty ratio of the pwm signal of a PWM constant-current circuit, with the duty ratio of pwm signal outputting to the 2nd PWM constant-current circuit, the two ratio is constant, make the duty ratio of the electric current exporting cold white LEDs lamp string group and warm white LEDs lamp string group respectively to, the relative percentage of the two keeps constant, so colour temperature keeps inconvenience.If to the control command of colour temperature, then respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control a described PWM constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Concrete, described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; No matter how colour temperature changes, the technical scheme that the utility model provides, ensures to regulate the duty ratio flowing through the electric current of cold white LEDs lamp string group before and after colour temperature, with flow through warm white LEDs lamp string group current duty cycle and, keep inconvenience, just can realize ensureing brightness inconvenience while adjustment colour temperature.Therefore, the technical scheme that the utility model provides, can realize both LED luminance and colour temperature when maintenance one is constant, regulate another, brings conveniently to user.
Refer to Fig. 2, the structure chart of another LED lamp emission control device that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, this device comprises:
Controller 201, the PWM constant-current circuit 202 be connected with described controller 201, the 2nd PWM constant-current circuit 203 be connected with described controller 201; And be connected with described controller 201, receive the wireless communication module 204 to described LED lamp control command; The output of a described PWM constant-current circuit 202 is connected with cold white LEDs lamp string group, and the output of described 2nd PWM constant-current circuit 203 is connected with warm white LEDs lamp string group;
Described controller 201 for: obtain the control command to described LED lamp by described wireless communication module 204; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control a described PWM constant-current circuit 202 and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 203 and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; Described 3rd duty ratio be the described control command of response before the duty ratio of pwm signal that receives of a described PWM constant-current circuit 202; Described 4th duty ratio be the described control command of response before the duty ratio of pwm signal that receives of described 2nd PWM constant-current circuit 203; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control a described PWM constant-current circuit 202 and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 203 and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with.
Further, the LED lamp emission control device that the utility model embodiment two provides also comprises:
Be connected with civil power, change alternating current is galvanic DC (DirectCurrent, direct current) constant voltage source 205;
And input is connected with described DC constant voltage source 205, output is connected with described 2nd PWM constant-current circuit 203 respectively with described controller 201, a described PWM constant-current circuit 202, the DC-DC reduction voltage circuit 206 of powering after reducing voltage.
Further, described DC constant voltage source 205 for output voltage be the DC constant voltage source of 24 volts.
Further, described DC-DC reduction voltage circuit is input termination 24 volts of direct currents, and output exports 5 volts of galvanic DC-DC reduction voltage circuits.
Concrete, cold white LEDs circuitry number in parallel in described cold white LEDs lamp string group is equal with circuitry number in parallel in described warm white LEDs light fixture; The branch road that in described cold white LEDs lamp string group, any parallel branch is corresponding with in described warm white LEDs light fixture, the number of LED is equal.
In order to more comprehensively set forth the technical scheme that the utility model provides, the utility model also provides a kind of LED lamp luminescent control system.
Refer to Fig. 3, the structure chart of a kind of LED lamp luminescent control system that Fig. 3 provides for the utility model embodiment.As shown in Figure 3, this system comprises:
Controller 301, the PWM constant-current circuit 302 be connected with described controller 301, the 2nd PWM constant-current circuit 303 be connected with described controller 301, be connected with described controller 301 wireless communication module 304, and wireless transmission terminal 305; Described wireless transmission terminal 305, for accepting user's input control, sends control command to described LED lamp by the mode of wireless transmission to described wireless communication module 304; The output of a described PWM constant-current circuit 302 is connected with cold white LEDs lamp string group, and the output of described 2nd PWM constant-current circuit 303 is connected with warm white LEDs lamp string group;
Described controller 301 for: obtain the control command to described LED lamp by described wireless communication module 304; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control a described PWM constant-current circuit 302 and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 303 and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; Described 3rd duty ratio be the described control command of response before the duty ratio of pwm signal that receives of a described PWM constant-current circuit 302; Described 4th duty ratio be the described control command of response before the duty ratio of pwm signal that receives of described 2nd PWM constant-current circuit 303; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control a described PWM constant-current circuit 302 and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described 2nd PWM constant-current circuit 303 and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with.
Concrete, refer to Fig. 4, the structure chart of the wireless transmission terminal that Fig. 4 provides for the utility model embodiment.As shown in Figure 4, this wireless transmission terminal 305 comprises:
Microprocessor 3051, the wireless signal transmission circuit 3052 be connected with described microprocessor 3051, the touch-control circuit 3053 be connected with described microprocessor 3051, and the touch key-press group 3054 be connected with described touch-control circuit 3053;
Described touch-control circuit 3053 for, receive the key information that inputted by described touch key-press group 3054 of user, and described key information be sent to described microprocessor 3051;
Described microprocessor 3051 for, identify user input described key information, obtain the control command of user to described LED lamp, by described wireless signal transmission circuit 3052, described control command be sent to described wireless communication module 304.
Further, as shown in Figure 4, described wireless transmission terminal 305 also comprises:
The direct current DC constant voltage circuit 3055 be connected respectively with described microprocessor 3051 and described touch-control circuit 3053, be responsible for power supply, optionally, described direct current DC constant voltage circuit 3055 comprises battery.
Further, described touch key-press group 3054 comprises:
Switch key, brightness regulation button, colour temperature regulating key, the most cold white shortcut key of high color temperature and lowest color temperature warm up white shortcut key.
Concrete, described wireless transmission terminal 305 optionally, is remote controller.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a LED lamp emission control device, is characterized in that, comprising:
Controller, the first pulse width modulation (PWM) constant-current circuit be connected with described controller, and the second pulse width modulation (PWM) constant-current circuit be connected with described controller; The output of described first pulse width modulation (PWM) constant-current circuit is connected with cold white LEDs lamp string group, and the output of described second pulse width modulation (PWM) constant-current circuit is connected with warm white LEDs lamp string group;
Described controller is used for, and obtains the control command to described LED lamp; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; Before described 3rd duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives; Before described 4th duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives.
2. device according to claim 1, is characterized in that, also comprises:
Be connected with described controller, receive the wireless communication module to described LED lamp control command.
3. device according to claim 1, is characterized in that, also comprises:
Be connected with civil power, change alternating current is galvanic direct current DC constant voltage source;
Input is connected with described direct current DC constant voltage source, output is connected with described second pulse width modulation (PWM) constant-current circuit respectively with described controller, described first pulse width modulation (PWM) constant-current circuit, the direct current DC-direct current DC reduction voltage circuit of powering after reducing voltage.
4. device according to claim 3, is characterized in that, described direct current DC constant voltage source to be output voltage the be direct current DC constant voltage source of 24 volts.
5. device according to claim 4, is characterized in that, described direct current DC-direct current DC reduction voltage circuit is input termination 24 volts of direct currents, and output exports 5 volts of galvanic direct current DC-direct current DC reduction voltage circuits.
6. device according to claim 1, is characterized in that, cold white LEDs circuitry number in parallel in described cold white LEDs lamp string group is equal with circuitry number in parallel in described warm white LEDs light fixture; The branch road that in described cold white LEDs lamp string group, any parallel branch is corresponding with in described warm white LEDs light fixture, the number of LED is equal.
7. a LED lamp luminescent control system, is characterized in that, comprising:
Controller, the first pulse width modulation (PWM) constant-current circuit be connected with described controller, the second pulse width modulation (PWM) constant-current circuit be connected with described controller, the wireless communication module be connected with described controller, and wireless transmission terminal; Described wireless transmission terminal is used for accepting user's input control, sends control command to described LED lamp by the mode of wireless transmission to described wireless communication module; The output of described first pulse width modulation (PWM) constant-current circuit is connected with cold white LEDs lamp string group, and the output of described second pulse width modulation (PWM) constant-current circuit is connected with warm white LEDs lamp string group;
Described controller is used for, and obtains the control command to described LED lamp by described wireless communication module; Described control command comprises the control command to brightness or the control command to colour temperature; Judge that whether described control command is the control command to brightness; If, respond the described control command to brightness, calculate the first duty ratio and the second duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described first duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described second duty ratio to described warm white LEDs lamp string group; The ratio of described first duty ratio and described second duty ratio equals the ratio of the 3rd duty ratio and the 4th duty ratio; If not, respond the described control command to colour temperature, calculate the 5th duty ratio and the 6th duty ratio respectively, control described first pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 5th duty ratio to described cold white LEDs lamp string group, control described second pulse width modulation (PWM) constant-current circuit and export the electric current corresponding with described 6th duty ratio to described warm white LEDs lamp string group; Described 5th duty ratio and described 6th duty ratio and equal described 3rd duty ratio and described 4th duty ratio with; Before described 3rd duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described first pulse width modulation (PWM) constant flow module receives; Before described 4th duty ratio is the described control command of response, the duty ratio of the pulse width modulation (PWM) signal that described second pulse width modulation (PWM) constant flow module receives.
8. system according to claim 7, is characterized in that, described wireless transmission terminal comprises:
Microprocessor, the wireless signal transmission circuit be connected with described microprocessor, the touch-control circuit be connected with described microprocessor, and the touch key-press group be connected with described touch-control circuit;
Described touch-control circuit is used for, and receives the key information that user is inputted by described touch key-press group, and described key information is sent to described microprocessor;
Described microprocessor is used for, and identifies the described key information of user's input, obtains the control command of user to described LED lamp, by described wireless signal transmission circuit, described control command is sent to described wireless communication module.
9. system according to claim 8, is characterized in that, described wireless transmission terminal also comprises:
The direct current DC constant voltage circuit be connected respectively with described microprocessor and described touch-control circuit.
10. system according to claim 8, is characterized in that, described touch key-press group comprises:
Switch key, brightness regulation button, colour temperature regulating key, the most cold white shortcut key of high color temperature and lowest color temperature warm up white shortcut key.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520140940.0U CN204929313U (en) | 2015-03-12 | 2015-03-12 | Luminous controlling means of LED lamps and lanterns and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520140940.0U CN204929313U (en) | 2015-03-12 | 2015-03-12 | Luminous controlling means of LED lamps and lanterns and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517247A (en) * | 2016-01-18 | 2016-04-20 | 杭州意博高科电器有限公司 | Multifunctional wireless remote control outdoor lamp string |
| CN106773136A (en) * | 2016-11-17 | 2017-05-31 | 广西大学 | A kind of eyeshield intelligent glasses |
| CN106920521A (en) * | 2017-03-24 | 2017-07-04 | 广州视源电子科技股份有限公司 | LED dimming method and device |
| CN107087327A (en) * | 2017-05-28 | 2017-08-22 | 巨尔(上海)光电照明有限公司 | LED/light source regulating system and its adjusting method |
| CN108738200A (en) * | 2018-06-08 | 2018-11-02 | 珠海金晟照明科技有限公司 | Color temperature adjustment device, the system and method for lamp group |
-
2015
- 2015-03-12 CN CN201520140940.0U patent/CN204929313U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517247A (en) * | 2016-01-18 | 2016-04-20 | 杭州意博高科电器有限公司 | Multifunctional wireless remote control outdoor lamp string |
| CN106773136A (en) * | 2016-11-17 | 2017-05-31 | 广西大学 | A kind of eyeshield intelligent glasses |
| CN106920521A (en) * | 2017-03-24 | 2017-07-04 | 广州视源电子科技股份有限公司 | LED dimming method and device |
| CN106920521B (en) * | 2017-03-24 | 2019-07-09 | 广州视源电子科技股份有限公司 | LED dimming method and device |
| CN107087327A (en) * | 2017-05-28 | 2017-08-22 | 巨尔(上海)光电照明有限公司 | LED/light source regulating system and its adjusting method |
| CN108738200A (en) * | 2018-06-08 | 2018-11-02 | 珠海金晟照明科技有限公司 | Color temperature adjustment device, the system and method for lamp group |
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